Options per variant

I'm building a quite complex webshop/catalogue. It has lots of gardenhouses, and every house comes in different sizes. I created charactaristics for the sizes. The customer should be able to choose some options. These options also depend on the size they choose (eg a wooden floor in the garden house depends -of course- on the size of the house).

Is it possible to add options to the variants? Or any other idea on doing this?

thanks.

You can't have options based on variant selection.
However, you can recalculate the product/option price with a quantity price calculation override plugin as explained in the developer documentation:
www.hikashop.com/en/support/documentatio...tation.html#override